#include<stdio.h>
#include<math.h>
int issan(double x,double y,double x1,double x2,double x3,double y3)

int main()
{
	double x1, y1, x2, y2, x3, y3;
	int L = 0;
	int A = 0;
	scanf("%ld %lf %lf %lf %lf %lf", x1, y1, x2, y2, x3, y3);
	int ret = issan(x1, y1, x2, y2, x3, y3);
	if (ret == 0)
		printf("Impossible");
	if(ret==1)
		L=
	return 0;
}

int issan(double x, double y, double x1, double x2, double x3, double y3)
{
	if()



}